Dynamic cardiomyoplasty (DCMP) is a promising but unproven surgical treatment for patients with end-stage heart failure. Today, the procedure is no longer performed in the Unites States. The procedure, first performed by Alain Carpentier in 1985 (1), involves mobilization of the latissimus dorsi muscle, which is then wrapped circumferentially around the heart. The muscle wrap is then, after a period of training, stimulated to contract in synchrony with cardiac systole. Chronic repetitive stimulation induces biochemical and physiological transformations of the muscle, altering its characteristics toward cardiac muscle. These changes include fatigue resistance, increased aerobic capacity, prolonged contraction duration, diminished size, and reduced maximal power (2–5).